THERMODYNAMIC EXCESS QUANTITIES OF SOLID TERNARY FEXNIXCO1-2X ALLOYS BY COMPUTER-AIDED KNUDSEN CELL MASS-SPECTROMETRY

Computer-aided Knudsen cell mass spectrometry is used for thermodynamic investigations on solid ternary FexNixCo1-2x alloys. The ''Digital Intensity Ratio'' method has been applied for the evaluation of the thermodynamic mixing functions. Ternary thermodynamically adapted power series are used for the algebraic representation of the thermodynamic excess properties. The values of the molar heats of mixing H(E) of the molar excess entropies S(E), and of the molar excess Gibbs energies G(E) along a section with constant ratio of the mole fractions x(Ni)/x(Fe) = 1 are presented.